cement kiln facility Articles

  • Suspension Burning for Tire Fuel Optimization in Precalciner Cement Kilns

    Synopsis: A presentation on optimizing substitution rates of Tire Derived Fuel (TDF) in precalciner kilns using Suspension Burner technology.  Discussions will be made on the challenges faced by both preheater and precalciner kilns using TDF on the feed shelf, technical measures aimed at solving these limitations, achieving high TDF ...


    By AFS Technology

  • Air Rule for Cement Kilns Requires 92 Percent Cut in Mercury Emissions

    Portland cement kilns will be required to reduce emissions of mercury by 92 percent as part of an Environmental Protection Agency final rule announced Aug. 9 that imposes controls for several toxic pollutants. Although most of the emissions standards in the final rule are less stringent than what the agency had proposed in 2009, the cement industry said the cost to operate the required controls ...


    By Ohio Lumex

  • End-of-life Tires as an Alternative Fuel (TDF) in Cement Kilns: Now Easier than Ever!

    End-of-life tires are a challenging type of waste since they are difficult to shred and are expensive to treat and get rid of. However, tire derived fuel TDF is an extremely good alternative to the traditional fuels used in cement kilns, like oil, coal, and petroleum coke. The following blog presents a solution and explains how TDF can be used for heating cement kilns. ...


    By Tana Oy

  • Cementing the PC MACT

    On September 9, 2010, the U.S. EPA promulgated the final amendments to the National Emissions Standard for Hazardous Air Pollutants from Portland Cement Manufacturing Industry (40 CFR 63 Subpart LLL), also known as the PC MACT. EPA’s self-proclaimed “historic” rulemaking includes some important implications for cement manufacturers and other sources that may be subject to ...


    By Trinity Consultants

  • `A Case Study in Implementation of the NESHAPs for the Portland Cement Industry at a Major Source,` appeared in Cement Americas magazine, July/August 2003

    Introduction Located at 40 CFR 63, Subpart LLL, the Portland Cement (PC) MACT standard poses a significant regulatory hurdle to the cement industry-Facilities subject to its requirements had to complete initial performance testing and develop their first substantial semi-annual monitoring report by January 31, 2003. The final Portland Cement MACT rule was promulgated on June 14, 1999, ...


    By Trinity Consultants

  • Permitting of Alternative Fuels and Raw Materials at Portland Cement Plants Post NSR Reform

    Introduction One of the ways that the portland cement industry is seeking eco-efficiency gains is in waste co-processing and energy/material recovery - using the waste and by-products of other industries as fuels and raw materials for cement manufacture.1 These wastes and by¬products of other industries, such as tires and plastics (fuels) or blast furnace slag and fly ...


    By Trinity Consultants

  • A Case Study in Implementation of the National Emission Standard for Hazardous Air Pollutants for the Portland Cement Industry at a Major Source

    The regulations at 40 CFR 63, Subpart LLL are commonly known as PC MACT because the rule establishes the maximum available control technology for hazardous air pollutants (HAPs) from portland cement plants in the United States. There are 188 HAPs specified in Section 112 of the Clean Air Act Amendments of 1990. Two classifications of HAP emitters are specified in 40 CFR 63. Major sources of HAPs ...


    By Trinity Consultants

  • Mining Company

    This Pavilion customer is a leading producer of primary aluminum, fabricated aluminum and alumina serving numerous industries including: the automotive, packaging, building and construction, commercial transportation and industrial markets. The facility aimed to increase efficiencies of its kilns during its aluminum fluoride production. Based on their history of successfully delivering similar ...


    By Rockwell Automation, Inc.

  • Martinsburg Plant, Washington D.C. – Massive upgrade and expansion case study

    The Martinsburg plant is unusual in a number of ways. Located on the outskirts of Martinsburg the plant has a strong relationship with the local community. When other facilities were closing their doors or postponing expansion projects, the Martinsburg cement plant invested over US$500 million in a massive upgrade and expansion that brought capacity up to 1.8 million t of cement. Although cement ...


    By CST Industries Inc

  • PC MACT proposal may signal widespread change

    On May 6, 2009, EPA proposed amendments to the National Emission Standards for Hazardous Air Pollutants from the Portland Cement Manufacturing Industry (PC MACT) in response to numerous petitions and court mandates. The proposed revisions present significant challenges to the portland cement industry by establishing a new lower maximum achievable control technology (MACT) floor that would require ...


    By Trinity Consultants

  • Study Charts a Future for Waste-Derived Fuels

    Pointers to possible future EU policy initiatives to give co-incineration facilities burning waste-derived fuels a strategic role in waste management have emerged in a study for the European Commission.1 The report suggests a policy focus on promoting source separation of municipal wastes, active discouragement of mass burn incinerators, and a levelling of the regulatory playing-field for ...

  • Abrasives case study - Essroc Materials, Inc.

    Plugging, Surging and Wear-Through Virtually Eliminated by Smart Elbows® At Essroc Materials, Inc., formerly Coplay Cement, plugging and elbow wear in pneumatic conveying lines caused unnecessary downtime and repair expense. The Frederick, MD, facility is a wet-process cement plant that produces 350,000 to 400,000 tons of cement a year using two 400-foot-long rotary ...


    By HammerTek Corporation

  • High-Tech Filters

    The current economic situation of the cement industry creates sensitivity regarding off-times and process stability. More stringent air-pollution laws, especially when using waste-derived fuels, are drawing more attention to the off-gas cleaning facilities, usually bag filters. This article does not deal with electrostatic precipitators - as even they have well known disadvantages. By using more ...


    By Evonik Fibres GmbH

  • Waste shredding protects resources in Indonesia - Case Study

    Cement production is among the core activities of building materials supplier Holcim. Holcim Ltd. can boast the most expansive geographical action radius in the global cements industry thanks to its subsidiaries in over 70 countries on all five continents. Recently, the company successfully inaugurated a modern recycling center in collaboration with its environmental technology partner Geocycle ...


    By WEIMA

  • Holcim: SRF production with UNTHA shredders in Vietnam

    Work is underway to commission a Solid Recovered Fuel (SRF) manufacturing plant in Vietnam, for one of the world’s leading cement and aggregates specialists, Holcim. The plant will process solid footwear production waste from the country’s main shoe factory, to create a fossil fuel substitute that will power Holcim’s local cement kiln calciner. Following a global ...

  • Refuse Derived Fuel, Current Practice and Perspectives

    Untitled Document Summary I OBJECTIVES The objectives of the project were to undertake a survey on the current ...

  • The Future of Secondary Materials as Fuel

    Many questions related to the regulatory status of facilities that use secondary materials as alternative fuels are anticipated to be answered in 2010.  In simple terms, if a combustion source uses a secondary material that is characterized as solid waste as an alternative fuel, then that source could be subject to a Clean Air Act (CAA) Section 129 standard.  If the same source used a ...


    By All4 Inc.

  • Las Vegas DirtWorkz, Inc.: Using the City’s wood waste to farm the desert

    Ray Becerra knows a thing or two about recycling, reusing and repurposing waste materials. You might even say it’s in his blood. Becerra has spent his entire life around landfills and farming operations, and he wears his passion for recycling waste materials on his sleeve. His enthusiasm for dust, dirt and debris, says Becerra, comes from his father, an avid recycler who was involved in the ...

  • Innovation and Investment Key to Success for Yorwaste (Waste shredder case study)

    With the opening of its new Solid Recovered Fuel (SRF) facility at the end of 2012, waste and recycling company Yorwaste is supporting a step-change within the UK waste industry with a shift in focus from waste processing to profitable fuel production. It is widely acknowledged that the UK must do more to reduce its landfill contributions and instead harness energy from waste – developing ...


    By UNTHA UK LTD

  • Mixed MSW composting is steady as she goes

    Two new facilities came on line in 2006, while one ceased operation and a second is shifting to a new technology. Annual survey identifies a total of 14 plants. Part I STEADY-STATE may be the best phrase to describe the status of facilities composting mixed municipal solid waste in the United States. In fact, steady-state may be the best phrase to describe solid waste composting in general since ...


    By BioCycle Magazine

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you